Home / 72,115.04-99,586.92-68,188.16

Finding the Fourth Proportional to 72,115.04, 99,586.92 and 68,188.16

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Solution

The fourth proportional to 72,115.04, 99,586.92 and 68,188.16 is: 94,164.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,115.04 : 99,586.92 = 68,188.16 : x
  2. Step 2: Convert to fraction form
    72,115.04/99,586.92 = 68,188.16/x
  3. Step 3: Cross multiply
    72,115.04x = 99,586.92 × 68,188.16
  4. Step 4: Simplify right side
    72,115.04x = 6,790,648,834.87
  5. Step 5: Solve for x
    x = 6,790,648,834.87/72,115.04
  6. Step 6: Final answer
    x = 94,164.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.